There was light

In this section we will start our journey to bring light inside the world of data. We will do this by performing some basic data analysis and visualization. A step which is offen referred to as exploratory data analysis (EDA).

Luckily we have a toolset at our hand called the grammar of graphics (ggplot).

We will use the tidyverse suite of packages for this. The tidyverse is a collection of R packages designed for data science. All packages share an underlying design philosophy, grammar, and data structures. The tidyverse is designed to make it easy to install and load core packages from the tidyverse in a single command. The packages in the tidyverse have been designed to work together naturally. This means that you can fluidly move from one package to another. For example, you might start with dplyr to manipulate your data, then ggplot2 to plot it, then gganimate to animate it.